Permalink
105 lines (91 sloc) 3.26 KB
/* This is simple demonstration of how to use expat. This program
reads an XML document from standard input and writes a line with
the name of each element to standard output indenting child
elements by one tab stop more than their parent element.
It must be used with Expat compiled for UTF-8 output.
__ __ _
___\ \/ /_ __ __ _| |_
/ _ \\ /| '_ \ / _` | __|
| __// \| |_) | (_| | |_
\___/_/\_\ .__/ \__,_|\__|
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to permit
persons to whom the Software is furnished to do so, subject to the
following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdio.h>
#include <expat.h>
#ifdef XML_LARGE_SIZE
# if defined(XML_USE_MSC_EXTENSIONS) && _MSC_VER < 1400
# define XML_FMT_INT_MOD "I64"
# else
# define XML_FMT_INT_MOD "ll"
# endif
#else
# define XML_FMT_INT_MOD "l"
#endif
#ifdef XML_UNICODE_WCHAR_T
# include <wchar.h>
# define XML_FMT_STR "ls"
#else
# define XML_FMT_STR "s"
#endif
static void XMLCALL
startElement(void *userData, const XML_Char *name, const XML_Char **atts)
{
int i;
int *depthPtr = (int *)userData;
(void)atts;
for (i = 0; i < *depthPtr; i++)
putchar('\t');
printf("%" XML_FMT_STR "\n", name);
*depthPtr += 1;
}
static void XMLCALL
endElement(void *userData, const XML_Char *name)
{
int *depthPtr = (int *)userData;
(void)name;
*depthPtr -= 1;
}
int
main(int argc, char *argv[])
{
char buf[BUFSIZ];
XML_Parser parser = XML_ParserCreate(NULL);
int done;
int depth = 0;
(void)argc;
(void)argv;
XML_SetUserData(parser, &depth);
XML_SetElementHandler(parser, startElement, endElement);
do {
size_t len = fread(buf, 1, sizeof(buf), stdin);
done = len < sizeof(buf);
if (XML_Parse(parser, buf, (int)len, done) == XML_STATUS_ERROR) {
fprintf(stderr,
"%" XML_FMT_STR " at line %" XML_FMT_INT_MOD "u\n",
XML_ErrorString(XML_GetErrorCode(parser)),
XML_GetCurrentLineNumber(parser));
return 1;
}
} while (!done);
XML_ParserFree(parser);
return 0;
}